Brazil's election battle extended far beyond rallies and campaign speeches, unfolding across millions of mobile phone screens. A WhatsApp channel called 'Lula's Army', with 10.8 million followers, became a major platform for digital political mobilisation, distributing ready-made videos, hashtags and direct instructions to supporters. How did this online network attempt to shape public opinion and influence the political narrative? NDTV examines the role of WhatsApp and coordinated digital campaigning in Brazil's election battle.